Gifts are not taxable to the giver or the recipient.
If the transfer is a loan, you don't owe tax now but will owe tax on the interest if you are repaid with interest.
All transactions over $10,000 are automatically reported to the IRS. No tax may be owed, but if you are doing something you shouldn't be (such as moving proceeds from illegal activity, or disguising a payment for work performed as a gift), realize there will be a record of the transaction that could be investigated if there was cause to do so.
